CN102873321B - Telescopic boom type slag sucking machine - Google Patents
Telescopic boom type slag sucking machine Download PDFInfo
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- CN102873321B CN102873321B CN201210375258.0A CN201210375258A CN102873321B CN 102873321 B CN102873321 B CN 102873321B CN 201210375258 A CN201210375258 A CN 201210375258A CN 102873321 B CN102873321 B CN 102873321B
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Abstract
A telescopic boom type slag sucking machine comprises a slag sucker, a vacuumizing device, a slag iron detector, a telescopic boom device, a control device and a turn-off device. The slag sucker comprises a slag sucking cavity, the slag sucking cavity comprises a first port and a second port which are communicated with the external, and the first port of the slag sucking cavity is positioned on the lower surface of the slag sucker; an extract opening of the vacuumizing device is connected with the second port of the slag sucking cavity to vacuumize the slag sucking cavity; the slag iron detector is used for identifying slag iron after slag is sucked into the slag sucking cavity, and transmits an identification signal when molten iron is detected; the telescopic boom device is used for driving the slag sucker to move up and down; the control device is connected with the slag iron detector and is used for transmitting a driving signal after the identification signal is received; and the turn-off device is connected with the control device, is positioned in the slag sucker, corresponds to a slag iron combining surface and is used for instantly separating the slag iron after the driving signal is received. The telescopic boom type slag sucking machine has the advantages of capabilities of reducing iron loss and improving slag-off efficiency, convenience in operation, long service life and low cost.
Description
Technical field
The present invention relates to a kind of dreg-sucking machine for field of steel metallurgy slag skimming process, particularly relate to a kind of telescopic telescopic boom dreg-sucking machine.
Background technology
Molten iron pretreatment improves steel quality, expands kind and improves the important means of converter operation, become the chief component of iron and steel metallurgy enterprise optimization technological process, it is the main technique link determining final sulfur content in molten steel, generally adopts for iron and steel enterprise at present.Totally, thoroughly, fast and effectively being removed by the molten iron slag containing high-sulfur, is the key of stably desulphurizing final effect, also directly has influence on converter terminal tapping.
Desulfurization is two separate and hot metal pretreatment technologies be closely connected again with skimming, sulfur removal technology determines the level of process terminal molten iron sulfur-bearing, skim, be by desulfurization process after the important means removed from molten iron of high sulphur slag, be determine the principal element into stove sulphur total amount.Therefore comparatively speaking, slag skimming process seems even more important to crossing program control sulphur.If desulfurization product can not get effective removal, better sulfur removal technology can not play one's part to the full.Therefore, effect of skimming in a sense determines final desulfurization degree.So, adopt advanced slag skimming process and equipment to be very necessary to system control sulphur and reduction production cost.What current employing was more is the arm-type Cinder Machine of hydraulically extensible, and its Front-end Design is very simple, is only a block plate, has that iron loss is large, multiple problems such as efficiency is low of skimming.
Improvement about molten steel pocket deslagging technique has caused the attention of a lot of metallargist, each iron and steel enterprise also all throws a large amount of manpower and materials and is being engaged in the research of this respect, how to improve the operating efficiency of skimming, reduce molten iron loss, the clearance improving slag becomes the Main way of research work.Such as: publication number is the slag skimming method that the Chinese patent application of CN101024245 discloses a kind of cylinder Cinder Machine, and Cinder Machine is arranged on roller equipment by slagging-off equipment that the method is mentioned exactly, carrys out the slag that special disposal mobility is poor.Publication number is that the Chinese patent application of CN1803343 proposes and a kind ofly drags for slag method and special device for removing slag thereof efficiently, and owing to adopting swinging to drag for slag technology, its device for removing slag is harrowed by two slags and formed instead of Cinder Machine.Analyze and put into practice and show, above-mentioned prior art executable operations is comparatively complicated, and special basis and equipment investment are very expensive, is applicable to the enterprise that production scale is larger.
Summary of the invention
The object of the present invention is to provide a kind of telescopic boom dreg-sucking machine, to solve the problem such as complicated operation, equipment application cost height that prior art exists.
To achieve these goals, telescopic boom dreg-sucking machine provided by the invention comprises: slag absorbing device, for near or enter molten iron, comprise slag absorbing chamber, described slag absorbing chamber is arranged in described slag absorbing device, described slag absorbing chamber comprises the first port and the second port that are in communication with the outside, and first port in described slag absorbing chamber is positioned at the lower surface of described slag absorbing device; Vacuum extractor, comprises bleeding point, and described bleeding point is connected with second port in described slag absorbing chamber, to vacuumize described slag absorbing chamber, thus makes the slag in molten iron suck described slag absorbing chamber from first port in described slag absorbing chamber; Slag iron checkout gear, for be inhaled into described slag absorbing chamber at slag after, distinguishes slag iron, and sends an identification signal when molten iron being detected; Telescopic boom device, is connected with described slag absorbing device, moves up and down for driving described slag absorbing device; Control device, is connected with described slag iron checkout gear, for after the described identification signal of reception, sends a drive singal; Cutoff device, is connected with described control device, and described cutoff device is arranged in described slag absorbing device and corresponding with slag iron faying face, and described cutoff device is used for after receiving described drive singal, is separated slag iron immediately, to reduce the iron water amount in slag.
According to a kind of preferred embodiment of above-mentioned telescopic boom dreg-sucking machine, wherein, described slag absorbing chamber is in vertically arranging, and described vacuum means is setting in described slag absorbing device upper surface.
According to a kind of preferred embodiment of above-mentioned telescopic boom dreg-sucking machine, wherein, the bottom in described slag absorbing chamber is inverted infundibulate.
According to a kind of preferred embodiment of above-mentioned telescopic boom dreg-sucking machine, wherein, described slag iron checkout gear is utilize slag iron to have electric resistance sensor that different electrical conductivity distinguishes slag iron.
According to a kind of preferred embodiment of above-mentioned telescopic boom dreg-sucking machine, wherein, described slag iron checkout gear and described cutoff device are positioned at sustained height, so that be separated slag iron in time.
According to a kind of preferred embodiment of above-mentioned telescopic boom dreg-sucking machine, wherein, the sidewall in described slag absorbing chamber is provided with accommodation hole, and described cutoff device is arranged in described accommodation hole.
According to a kind of preferred embodiment of above-mentioned telescopic boom dreg-sucking machine, wherein, described cutoff device is horizontally disposed hydraulic cylinder or servomotor, on the piston rod of described hydraulic cylinder or the output shaft of described servomotor be provided with dividing plate for separating of slag iron.
According to a kind of preferred embodiment of above-mentioned telescopic boom dreg-sucking machine, wherein, the top in described slag absorbing chamber is straight tube shape, and described slag iron checkout gear and described cutoff device are positioned at the upside of the junction of upper and lower, described slag absorbing chamber.
According to a kind of preferred embodiment of above-mentioned telescopic boom dreg-sucking machine, wherein, described telescopic boom device is connected to the top of described vacuum extractor.
According to a kind of preferred embodiment of above-mentioned telescopic boom dreg-sucking machine, wherein, described slag absorbing device is inverted frustum.
The present invention can be installed vertically on above hot-metal bottle, slag absorbing device is close or enter molten iron level, different by the ferroelectric conductance of slag, vacuumize, be separated the means such as slag iron, slag and molten iron is made to be drawn onto required position rapidly in time, then slag iron is separated, whereby, the present invention can reduce iron loss, improve and to skim efficiency, and easy to operate, long service life, cost are low.
Accompanying drawing explanation
Fig. 1 is the structural representation of the preferred embodiment of the present invention.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in further details.
Fig. 1 schematically illustrates the structure of the preferred embodiment of the present invention, and as shown in the figure, this preferred embodiment comprises control device 1, telescopic boom device 2, vacuum extractor 3, slag absorbing device 4, slag iron checkout gear 5, cutoff device 6.In addition, in Fig. 1, also show the liquid level 71 of hot-metal bottle 7 and wherein molten iron, so that clearly describe the application of this preferred embodiment.
In the preferred embodiment, slag absorbing device 4 is for stretching into the liquid level less than 71 of molten iron downwards, and it also can be in-plant near liquid level 71 certainly, absorbs high sulphur slag on molten iron efficiently for principle can make slag absorbing chamber 41.Slag absorbing device 4 comprises slag absorbing chamber 41, and slag absorbing chamber 41 is generally within the longitudinal central region of slag absorbing device 4.Slag absorbing chamber 41 comprises the first port 414 and the second port 413 be in communication with the outside, and first port 414 in slag absorbing chamber 41 is positioned at the lower surface of slag absorbing device 4, and the second port 413 is connected with the bleeding point of vacuum extractor 3.Vacuum extractor 3 comprises and is connected bleeding point with the second port 413, to vacuumize slag absorbing chamber 41, thus the slag in molten iron is sucked slag absorbing chamber 41 from first port 414 in slag absorbing chamber 41.Slag iron checkout gear 5, for after being inhaled into slag absorbing chamber 41 at slag, distinguishing slag iron, and sends an identification signal when molten iron being detected, so that reduce the iron water amount in slag.Because the multiple physical attribute such as temperature, electrical conductivity of slag iron is not identical, therefore, can according to the difference of the multiple attribute of the two, distinguish the two, to vacuum extractor 3 utilized to suck in the process in slag absorbing chamber 41 by slag, when slag iron checkout gear 5 detects that molten iron is inhaled into slag absorbing chamber 41, control both cutoff device 6 separation in time and molten iron is refluxed as in hot-metal bottle 7.Telescopic boom device 2 is connected with vacuum extractor 3, can certainly directly be connected with slag absorbing device 4, and for driving slag absorbing device 4, vacuum extractor 3 etc. to move up and down, therefore the implementation of telescopic boom device 2 is a lot, such as hydraulic cylinder, crane etc.Control device 1 is connected with slag iron checkout gear 5 by signal transmission cable 12, for after reception identification signal, sends a drive singal to drive cutoff device 6 action.Cutoff device 6 is connected with control device 1 by controlling pipeline 11, and cutoff device 6 is arranged in slag absorbing device 4 and corresponding with slag iron faying face so that be separated slag iron immediately.Cutoff device 6, after receiving drive singal, is separated slag iron, immediately to reduce the iron water amount in slag.
When applying, telescopic boom device 2 drives slag absorbing device 4 and vacuum extractor 3 to move up and down, slag absorbing device 4 is stretched into or close liquid level 71, vacuum extractor 3, by the powerful slag absorbing in slag absorbing chamber 41, when slag iron checkout gear 5 detects and finds that molten iron is inhaled into, makes cutoff device 6 be separated slag iron by control device 1, also be, slag absorbing chamber 41 is divided into two parts, and the high sulphur slag of top is stayed in slag absorbing chamber 41, and the molten iron of below flows into hot-metal bottle 7.
In the preferred embodiment, slag absorbing device 4 is in inverted taper type, and compare with the interior shape of hot-metal bottle 7 and agree with, certainly, it also can be cylindrical or other shapes.The longitudinal central region of slag absorbing device 4 is located in slag absorbing chamber 41 in vertical state, vacuum extractor 3 is positioned at slag absorbing device 4 upper surface.Should be appreciated that the shape in slag absorbing chamber 41 is not limited to vertical setting, to be obliquely installed or bending setting also can be alternatively.The slag absorbing chamber 41 of this preferred embodiment comprises two parts substantially, and the bottom 412 of straight-cylindrical top 411 and upside down funnel shape, so designs, and is convenient to the slag absorbing in larger scope at liquid level 71, and promotes that slag automatically floats in molten iron, improves slagging-off efficiency.Slag iron checkout gear 5 and cutoff device 6 are positioned at the upside of the top 411 in slag absorbing chamber 41 and the junction of bottom 412, when not affecting bottom 412 high efficiency slag absorbing, can detect and be separated slag iron in time.
The slag iron checkout gear 5 of this preferred embodiment is utilize slag iron to have electric resistance sensor that different electrical conductivity distinguishes slag iron, molten iron is not once Xi Ru the top 411 in slag absorbing chamber 41, electric resistance sensor can perception electrical conductivity immediately change, thus send identification signal, and then make cutoff device 6 action to be separated slag iron by control device 1.
In order to be separated slag iron more accurately, slag iron checkout gear 5 and cutoff device 6 are positioned at sustained height, so that be separated slag iron in time, substantially realize finding molten iron and to be separated slag iron synchronous.
The cutoff device 6 of this preferred embodiment is horizontally disposed hydraulic cylinder, and the piston rod of hydraulic cylinder is provided with the dividing plate for separating of slag iron.The sidewall on the top 411 in slag absorbing chamber 41 is provided with accommodation hole 60, as the hydraulic cylinder of cutoff device 6 generally within this accommodation hole 60.Because cutoff device 6 is hydraulic cylinder, therefore, its control pipeline 11 be connected with control device 1 is correspondingly the hydraulic tube for delivery hydraulic pressure medium.If cutoff device 6 drives (such as servomotor) for motor, so control the cable etc. that pipeline can be transmission of electric signals.
The dividing plate of this preferred embodiment adopts Driven by Hydraulic Cylinder, realizes its displacement in the horizontal direction, i.e. the opening and closing of slag absorbing device.Concrete connection and closing motion are: as rated voltage logical between the electric resistance sensor (Resistance probe) of slag iron checkout gear 5 and dividing plate.When slag absorbing device 4 does not work, the circuit between slag iron checkout gear 5 and dividing plate is off state.In the early stage that slag absorbing device 4 works, by position between slag iron checkout gear 5 and dividing plate is desulfurization slag; In the mid-term of slag absorbing device work, by this position is slag iron mixture; In the latter stage of slag absorbing device work, by this position is molten iron.Because the conductance of slag iron exists notable difference, therefore different duties, its conductance is different, the change of electric current is fed back to control device 1 by signal transmission cable 12, control device 1 realizes the horizontal displacement of dividing plate again by hydraulic cylinder, dividing plate is moved towards the direction of electric resistance sensor, thus cuts off slag iron.More optimizedly, the horizontal displacement of dividing plate and electric current be changing into proportional relationship, when namely slag absorbing device does not work, electric current is zero, dividing plate horizontal direction without motion, when being entirely molten iron and passing through, electric current reaches maximum, and dividing plate horizontal direction moves and reaches maximum (closed condition).
To sum up, can be installed vertically on above hot-metal bottle when the present invention applies, entered by telescopic boom device or close molten iron level, by vacuum extractor, realize slag and molten iron can be drawn onto required position in time rapidly, due to slag iron different in kind, such as conductance is different, now can the path of quick closedown slag absorbing, thus realize being separated of slag and molten iron, reach rapidly and efficiently slagging-off and the low object of iron loss.
By upper analysis, the present invention and preferred embodiment thereof can realize following advantage:
Iron loss is low, because the conductance of slag iron is different, hydraulic cylinder is closed rapidly, thus realizes being separated of molten iron and slag, reduces the iron water amount in slag.
Slag absorbing head adopts funnel-shaped design, and because the density of slag iron is different, this design can promote that slag automatically floats in molten iron, and slagging-off efficiency is high.
Vacuumize design owing to adopting, the floating of pernicious gas and field trash in molten iron can be promoted, effectively promote iron water purification, and reduce back sulphur rate, reduce the use of desulfurizing agent.
Structure is simple, produces, installation cost is low, operate simple and easy, be convenient to medium or small sized steel company application.
As known by the technical knowledge, the present invention can be realized by other the embodiment not departing from its Spirit Essence or essential feature.Therefore, above-mentioned disclosed embodiment, with regard to each side, all just illustrates, is not only.Within the scope of the present invention all or be all included in the invention being equal to the change in scope of the present invention.
Claims (5)
1. a telescopic boom dreg-sucking machine, is characterized in that, comprising:
Slag absorbing device, near or enter molten iron, comprise slag absorbing chamber, described slag absorbing chamber is arranged in described slag absorbing device, and described slag absorbing chamber comprises the first port and the second port that are in communication with the outside, and first port in described slag absorbing chamber is positioned at the lower surface of described slag absorbing device;
Vacuum extractor, comprises bleeding point, and described bleeding point is connected with second port in described slag absorbing chamber, to vacuumize described slag absorbing chamber, thus makes the slag in molten iron suck described slag absorbing chamber from first port in described slag absorbing chamber;
Slag iron checkout gear, for be inhaled into described slag absorbing chamber at slag after, distinguishes slag iron, and sends an identification signal when molten iron being detected; Described slag iron checkout gear is utilize slag iron to have electric resistance sensor that different electrical conductivity distinguishes slag iron;
Telescopic boom device, is connected with described slag absorbing device, moves up and down for driving described slag absorbing device;
Control device, is connected with described slag iron checkout gear, for after the described identification signal of reception, sends a drive singal;
Cutoff device, is connected with described control device, and described cutoff device is arranged in described slag absorbing device and corresponding with slag iron faying face, and described cutoff device is used for after receiving described drive singal, is separated slag iron immediately, to reduce the iron water amount in slag,
Described slag absorbing chamber is in vertically arranging, and the bottom in described slag absorbing chamber is inverted infundibulate,
The top in described slag absorbing chamber is straight tube shape, and described slag iron checkout gear and described cutoff device are positioned at the upside of the junction of upper and lower, described slag absorbing chamber,
Described slag iron checkout gear and described cutoff device are positioned at sustained height, so that be separated slag iron in time,
The sidewall in described slag absorbing chamber is provided with accommodation hole, and described cutoff device is arranged in described accommodation hole.
2. telescopic boom dreg-sucking machine according to claim 1, is characterized in that,
Described vacuum means is setting in described slag absorbing device upper surface.
3. telescopic boom dreg-sucking machine according to claim 1, is characterized in that,
Described cutoff device is horizontally disposed hydraulic cylinder or servomotor, on the piston rod of described hydraulic cylinder or the output shaft of described servomotor be provided with dividing plate for separating of slag iron.
4. telescopic boom dreg-sucking machine according to claim 2, is characterized in that, described telescopic boom device is connected to the top of described vacuum extractor.
5. telescopic boom dreg-sucking machine according to claim 1, is characterized in that, described slag absorbing device is inverted frustum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210375258.0A CN102873321B (en) | 2012-09-29 | 2012-09-29 | Telescopic boom type slag sucking machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210375258.0A CN102873321B (en) | 2012-09-29 | 2012-09-29 | Telescopic boom type slag sucking machine |
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| CN102873321A CN102873321A (en) | 2013-01-16 |
| CN102873321B true CN102873321B (en) | 2014-12-24 |
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| CN201210375258.0A Active CN102873321B (en) | 2012-09-29 | 2012-09-29 | Telescopic boom type slag sucking machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104498660B (en) * | 2014-12-24 | 2016-08-24 | 马鞍山市晨光高耐磨科技发展有限公司 | ZDZ type twin shaft automatic negative-pressure slag-draining device and control system thereof |
| CN115355720A (en) * | 2022-08-17 | 2022-11-18 | 巢湖云海镁业有限公司 | Magnesium alloy smelting slag transfer device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1240055A (en) * | 1968-02-09 | 1971-07-21 | Skf Svenska Kullagerfab Ab | Improvements in or relating to slag ladles |
| SU761139A1 (en) * | 1978-02-27 | 1980-09-07 | Inst Chernoi Metallurgii | Head of hydraulic vacuum apparatus for suction of slag |
| FR2577452A1 (en) * | 1985-02-19 | 1986-08-22 | Vallourec | Method and system for slagging (removing slag from) the surface of a bath of metal in a continuous-casting installation |
| CN2255324Y (en) * | 1995-12-08 | 1997-06-04 | 唐桂荣 | Vacuum dregs suction-discharging machine |
| CN202763034U (en) * | 2012-09-29 | 2013-03-06 | 莱芜钢铁集团有限公司 | Telescopic arm type slag suction machine |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61116288A (en) * | 1984-11-09 | 1986-06-03 | 株式会社クボタ | Detector for thickness of slag in vacuum suction type slag-removing system |
| JPH10272556A (en) * | 1997-03-31 | 1998-10-13 | Nippon Steel Corp | Method for detecting flowing-out of slag and instrument therefor |
-
2012
- 2012-09-29 CN CN201210375258.0A patent/CN102873321B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1240055A (en) * | 1968-02-09 | 1971-07-21 | Skf Svenska Kullagerfab Ab | Improvements in or relating to slag ladles |
| SU761139A1 (en) * | 1978-02-27 | 1980-09-07 | Inst Chernoi Metallurgii | Head of hydraulic vacuum apparatus for suction of slag |
| FR2577452A1 (en) * | 1985-02-19 | 1986-08-22 | Vallourec | Method and system for slagging (removing slag from) the surface of a bath of metal in a continuous-casting installation |
| CN2255324Y (en) * | 1995-12-08 | 1997-06-04 | 唐桂荣 | Vacuum dregs suction-discharging machine |
| CN202763034U (en) * | 2012-09-29 | 2013-03-06 | 莱芜钢铁集团有限公司 | Telescopic arm type slag suction machine |
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| CN102873321A (en) | 2013-01-16 |
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